@Horton - This is going to be slightly off topic for second but I promise to get back on topic at the end.
I wakesurf. A lot. Like anything, Gary, you can put in tons of effort or you can just stand there. Does every waterskier in the world try to push the limits of their own physical ability every time out? Obviously not. You're lumping everybody into one pile because you're pissed off. If you're so angry, do something about it. Just calling wakesurfing a "very little effort pastime" is asinine.
Now then, I also slalom. I also love dragboats. Neither of these things mix well with wakesurfing. Therefore, I don't wakesurf in areas that effect either. I do however see people being completely irresponsible with their wakes. Hardcore wakesurfing is new to the boating world and as with anything new, there are going to be teething problems. I agree that something needs to be done. Education would be the first step. That requires a dialog and you can't start a dialog with just a middle finger. There are some of us (wakesurfers) out there that sympathize and agree with the issues. The solution is going to be tough to find on this one though. My end dream is a self diffusing double sided surf wake. In other words, a wake that can be surfed on either side at all times that then leaves nothing but glass behind it. I've got the first half of it fairly dialed in. The second half is going to take some engineers that are much smarter than me and some heavy duty design software to accomplish. The good news is that my double sided surf wake is smaller than what I can produce on just one side. Less impact to the rest of the boating community at large. The bad news is that being a human, I'm genetically predisposed to wanting more. Right now I'm not willing to overload my craft so, I'm not going to cause nearly the impact that someone with say 4000lbs of ballast would. If you want regulation, start there. Have your local sheriff (or mounty) break out a calculator and a tape measure and find out how overloaded every single wakeboat is. If a boat is overloaded, it should be fine. Obviously there are nearly endless variables to that equation but, it's not to tough to tell when someone is WAY over the limit.
Back on topic, man made ski lakes are generally way too shallow for surfing. If you're trying to build a wake in anything less than 12-15ft, it's just a waste of time. It kills the wake. That's good for keeping the shore damage down I guess. If they keep doing it, the lake will get shallower and shallower, making it worse and worse. If it's private though, shouldn't the owners discuss if it should be allowed because of potential issues? Dialog. Perhaps that bit of info would light a candle instead curse the darkness. If you want to surf, buy an old gravel pit and fill it up.